Type:UK 77,US77,English 77,Cone Studs,Prong StudsColor: Bronze ,Gun black ,Silver , Gold ,Custom ColorShape:Cone Studs,2 Prong StudsFeature:Nickel-FreeSize:12.7x 10.8 x 19 x 8.2mm(Dia x Tall x Total Tall x Prong)Use: Jacket,Shoes,Necklace,Leather Accessories,Bracelet,Pets Appliance